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One kilogram of dry air at STP conditions is exposed to 1.00 R of X-rays. One roentgen is defined by Equation 32.1 in Section 32.1. An equivalent definition can be based on the fact that an exposure of one roentgen deposits 8.30 x 10-3 J of energy per kilogram of dry air. Using the two definitions and assuming that all ions produced are singly charged, determine the average energy (in eV) needed to produce one ion in air.
A ball of mass 0.330 kg is thrown upward, rising 11.1 m above the point at which it was released. Compute the average force exerted on the ball by the hand
Standing waves on a 1.7m long string that is fixed at both ends are seen at successive frequencies of 36 Hz and 54Hz A) What is the fundamental frequency B) What is the wave speed
Two batteries are connected in parallel to power a wheelchair. find the current provided to the motor
The Mini Cooper is rated at the maximum power of 115. hp (1 hp=746 W), when moving at 80km/h. Suppose that the net force accelerating the car is constant.
Please use your notes, book, or other source to find a relationship (equation) that describes the motion of a mass oscillating on a spring. How could you predict how fast the mass will oscillate
Write down an energy transformation equation
A generator has a square coil consisting of 320 turns. The coil rotates at 67 rad/s in a 0.34 T magnetic field. What is the length of one side of the coil
Four copper wires of equal length are connected in series. The cross sectional areas are 1 cm2, 2 cm2, 3 cm2, and 5 cm2, What is the voltage across the 2 cm2 wire in units of volt
A uniform ladder 7.30 long weighing 435 rests with one end on the ground and the other end against a perfectly smooth vertical wall. What force does the wall exert on the ladder
A 10 kg box is being pushed up a slippery ramp at and angle of 10 degrees. What force does the man need to apply to the box to keep it traveling up the ramp at a steady speed
A 455pF capacitor is charged to 155V and then quickly connected to a 255mH inductor. Determine the peak value of the current
A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 1.70 104 m/s, and the radius of the orbit is5.00 106 m. What is the orbital speed of the second satellite
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